from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a device designed to prevent injury or accidents


Sorry, no etymologies found.


  • "When a spaceship goes down to the Jovian surface, it's a radio-controlled job; it leaks like a sieve, to equalize pressure, but other­wise it's the sturdiest, most utterly powerful model ever designed; it's loaded with every instrument, every servomechanism, every safety device the human mind has yet thought up to protect a million-dollar hunk of precision equipment.

    Science Fiction Hall of Fame


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